);

		return $menu_items;
	}

	/**
	 * Adds a footer comment related to object cache to the strings.
	 *
	 * @param  array $strings Existing footer strings.
	 * @return array Modified footer strings.
	 */
	public function w3tc_footer_comment( $strings ) {
		$w3tc_o  = Dispatcher::component( 'ObjectCache_WpObjectCache_Regular' );
		$strings = $w3tc_o->w3tc_footer_comment( $strings );

		return $strings;
	}

	/**
	 * Collects usage statistics for the object cache.
	 *
	 * @param mixed $storage Data storage to collect statistics.
	 *
	 * @return void
	 */
	public function w3tc_usage_statistics_of_request( $storage ) {
		$w3tc_o = Dispatcher::component( 'ObjectCache_WpObjectCache_Regular' );
		$w3tc_o->w3tc_usage_statistics_of_request( $storage );
	}

	/**
	 * Adds object cache metrics to the usage statistics.
	 *
	 * @param array $metrics Existing metrics.
	 *
	 * @return array Modified metrics.
	 */
	public function w3tc_usage_statistics_metrics( $metrics ) {
		$metrics = array_merge(
			$metrics,
			array(
				'objectcache_get_total',
				'objectcache_get_hits',
				'objectcache_sets',
				'objectcache_flushes',
				'objectcache_time_ms',
			)
		);

		return $metrics;
	}

	/**
	 * Adds object cache sources to the usage statistics.
	 *
	 * @param array $sources Existing sources.
	 *
	 * @return array Modified sources.
	 */
	public function w3tc_usage_statistics_sources( $sources ) {
		$w3tc_c = Dispatcher::config();
		if ( 'apc' === $w3tc_c->get_string( 'objectcache.engine' ) ) {
			$sources['apc_servers']['objectcache'] = array(
				'name' => __( 'Object Cache', 'w3-total-cache' ),
			);
		} elseif ( 'memcached' === $w3tc_c->get_string( 'objectcache.engine' ) ) {
			$sources['memcached_servers']['objectcache'] = array(
				'servers'         => $w3tc_c->get_array( 'objectcache.memcached.servers' ),
				'username'        => $w3tc_c->get_string( 'objectcache.memcached.username' ),
				'password'        => $w3tc_c->get_string( 'objectcache.memcached.password' ),
				'binary_protocol' => $w3tc_c->get_boolean( 'objectcache.memcached.binary_protocol' ),
				'name'            => __( 'Object Cache', 'w3-total-cache' ),
			);
		} elseif ( 'redis' === $w3tc_c->get_string( 'objectcache.engine' ) ) {
			$sources['redis_servers']['objectcache'] = array(
				'servers'                 => $w3tc_c->get_array( 'objectcache.redis.servers' ),
				'verify_tls_certificates' => $w3tc_c->get_boolean( 'objectcache.redis.verify_tls_certificates' ),
				'username'                => $w3tc_c->get_boolean( 'objectcache.redis.username' ),
				'dbid'                    => $w3tc_c->get_integer( 'objectcache.redis.dbid' ),
				'password'                => $w3tc_c->get_string( 'objectcache.redis.password' ),
				'name'                    => __( 'Object Cache', 'w3-total-cache' ),
			);
		}

		return $sources;
	}
}